:root{
  --bg:#f5f7fb;--panel:#ffffff;--panel2:#f9fbfd;--line:#d9e2ee;--line2:#c8d2df;
  --text:#172033;--muted:#5d6b82;--soft:#7b8799;--brand:#2563eb;--brand2:#1d4ed8;
  --ok:#059669;--okbg:#e7f8ef;--warn:#c77700;--warnbg:#fff5dd;--bad:#dc2626;--badbg:#ffe8ea;
  --side:#0f172a;--side2:#172033;--sidetext:#e6edf7;--shadow:0 12px 30px rgba(24,39,75,.08);
  --r:14px;--r2:22px;
}
*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Segoe UI,system-ui,-apple-system,Arial,sans-serif}a{color:inherit}h1,h2,h3,p{margin-top:0}h1{font-size:2.1rem;line-height:1.12;margin-bottom:.35rem}h2{font-size:1.25rem;margin-bottom:.45rem}h3{font-size:1.05rem;margin-bottom:.35rem}.eyebrow{margin-bottom:.55rem;color:var(--brand);font-size:.72rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.small-note,.hero-text,.section-subtitle{color:var(--muted);line-height:1.55}.mini-label{display:block;color:#a8b3c5;font-size:.7rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase}

/* Login */
.login-page{display:grid;place-items:center;min-height:100vh;padding:24px;background:linear-gradient(180deg,#f9fbff,#edf3fa)}.login-shell{width:100%;display:flex;justify-content:center}.login-card{width:min(410px,100%);padding:32px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 60px rgba(24,39,75,.13)}.login-card-centered{display:grid;gap:20px}.login-logo-wrap{display:flex;justify-content:center}.logo-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:900}.login-headline{text-align:center}.login-subtitle{margin:0;color:var(--muted);line-height:1.55}.login-note{padding:13px 14px;background:var(--panel2);border:1px solid var(--line);border-radius:12px;color:var(--muted);font-size:.9rem}.login-note p{margin:0}.login-note strong{display:block;margin-bottom:4px;color:var(--text)}

/* Layout */
.app-shell{min-height:100vh;display:grid;grid-template-columns:250px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;padding:22px 16px;background:var(--side);color:var(--sidetext)}.logo{display:flex;align-items:center;gap:12px;margin-bottom:28px;text-decoration:none}.logo strong,.logo small{display:block}.logo small{color:#9aa6ba}.side-nav{display:grid;gap:7px}.side-nav a{display:flex;align-items:center;gap:11px;min-height:42px;padding:10px 12px;color:#cbd5e1;text-decoration:none;border-radius:12px;transition:.15s}.side-nav a span{display:grid;place-items:center;width:26px;height:26px;border-radius:9px;background:rgba(255,255,255,.08)}.side-nav a:hover,.side-nav a.active{background:rgba(255,255,255,.09);color:#fff}.sidebar-card{margin-top:auto;padding:15px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.08);border-radius:14px}.sidebar-card strong,.sidebar-card small{display:block}.sidebar-card strong{margin-top:6px}.sidebar-card small{color:#a8b3c5}.main{min-width:0;padding:28px}

/* Generic */
.page-hero{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r2);box-shadow:var(--shadow)}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:22px}.stat-card,.sensor-card,.panel,.metric-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:0 8px 20px rgba(24,39,75,.05)}.stat-card{min-height:98px;display:flex;align-items:center;gap:13px;padding:17px}.stat-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#eaf1ff;color:var(--brand);font-weight:800}.stat-card small,.metric-card small,.info-list dt{display:block;color:var(--soft);font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.stat-card strong{display:block;margin-top:5px;font-size:1.55rem}.stat-card.wide strong{font-size:.98rem;line-height:1.45}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin:8px 0 14px}.section-head h2{margin-bottom:0}.section-subtitle{text-align:right;max-width:520px}

/* Sensor cards */
.sensor-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.sensor-card{padding:18px;transition:.15s}.sensor-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--line2)}.sensor-card-head,.sensor-topline,.panel-header,.user-card-header,.user-card-footer{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.sensor-id,.counter-pill{display:inline-flex;align-items:center;min-height:28px;padding:6px 10px;background:var(--panel2);border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:.78rem;font-weight:750}.sensor-card-body{margin:14px 0 16px}.temp-display{display:flex;align-items:baseline;gap:8px;margin:8px 0 14px}.temp-display strong{font-size:2.45rem;letter-spacing:-.05em;line-height:.95}.temp-display span{color:var(--brand);font-weight:800}.empty-temp,.compact-empty,.chart-empty{min-height:72px;display:grid;place-items:center;color:var(--soft);background:var(--panel2);border:1px dashed var(--line2);border-radius:12px}.info-list{display:grid;gap:9px;margin:0}.info-list div{display:flex;justify-content:space-between;gap:12px;padding:9px 11px;background:var(--panel2);border:1px solid var(--line);border-radius:11px}.info-list dd{margin:0;color:var(--muted);font-weight:650;text-align:right}.status-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 9px;border-radius:999px;font-size:.7rem;font-weight:850;letter-spacing:.045em;text-transform:uppercase}.status-pill:before{content:"";width:8px;height:8px;border-radius:999px;background:currentColor}.status-online{color:var(--ok);background:var(--okbg)}.status-waiting,.status-stale{color:var(--warn);background:var(--warnbg)}.status-off{color:var(--bad);background:var(--badbg)}

/* Forms */
.form-stack{display:grid;gap:14px}label{display:grid;gap:7px;color:var(--muted);font-size:.92rem;font-weight:650}input,select{width:100%;min-height:44px;padding:11px 13px;background:#fff;border:1px solid var(--line2);border-radius:11px;color:var(--text);outline:none}input:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(37,99,235,.12)}input[type=checkbox]{width:18px;height:18px;min-height:18px;padding:0;accent-color:var(--brand)}input:disabled,select:disabled{background:#f8fafc;opacity:.72}.block-switch{display:flex;align-items:center;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:10px 15px;border:1px solid var(--line2);border-radius:11px;background:#fff;color:var(--text);font-weight:760;text-decoration:none;cursor:pointer;transition:.15s}.btn:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(24,39,75,.08)}.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));border-color:transparent;color:#fff}.btn-ghost{background:var(--panel2)}.btn-danger{background:var(--bad);border-color:var(--bad);color:#fff}.btn-wide{width:100%}.btn-small{min-height:36px;padding:7px 11px}
.alert{margin-bottom:16px;padding:13px 15px;border-radius:12px;border:1px solid var(--line)}.alert-success{color:#065f46;background:#ecfdf5;border-color:#a7f3d0}.alert-danger{color:#991b1b;background:#fef2f2;border-color:#fecaca}

/* Detail with tabs */
.detail-main{padding:24px}.detail-embed{background:var(--bg)}.detail-main-embedded{padding:20px;background:var(--bg)}.detail-metric-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px;margin-bottom:16px}.metric-card{padding:16px}.metric-card strong{display:block;margin-top:7px;font-size:1.08rem}.tabs-panel{padding:0;overflow:hidden}.tab-nav{display:flex;gap:4px;padding:8px;background:var(--panel2);border-bottom:1px solid var(--line)}.tab-button{min-height:40px;padding:9px 13px;border:0;background:transparent;color:var(--muted);border-radius:10px;font-weight:780;cursor:pointer}.tab-button:hover{background:#edf4ff}.tab-button.active{background:#fff;color:var(--brand);box-shadow:0 6px 16px rgba(24,39,75,.06)}.tab-content{display:none;padding:20px}.tab-content.active{display:block}.detail-two-column{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(310px,.75fr);gap:18px}.quick-info{display:grid;gap:11px}.quick-info-item{display:flex;justify-content:space-between;gap:14px;padding:12px 13px;background:var(--panel2);border:1px solid var(--line);border-radius:11px}.quick-info-item span{color:var(--soft);font-weight:720}.quick-info-item strong{text-align:right}.chart-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:13px}.chart-wrap{padding:14px;min-height:355px;background:linear-gradient(180deg,#fff,#f9fbff);border:1px solid var(--line);border-radius:14px}.chart-wrap canvas{display:block;width:100%;height:320px}.chart-legend{display:flex;gap:16px;flex-wrap:wrap;margin-top:9px;color:var(--soft);font-size:.9rem}.chart-legend span:before{content:"";display:inline-block;width:10px;height:10px;margin-right:7px;border-radius:999px;background:var(--brand)}.locked-box{padding:17px;color:var(--muted);background:var(--panel2);border:1px dashed var(--line2);border-radius:12px}.locked-box strong{display:block;color:var(--text);margin-bottom:5px}

/* Tables/users/admin */
.panel{padding:20px}.panel-elevated{box-shadow:var(--shadow)}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:13px}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:12px 13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{background:var(--panel2);color:var(--soft);font-size:.74rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap}tbody tr:hover{background:#f8fbff}tbody tr:last-child td{border-bottom:0}code{display:inline-block;max-width:100%;padding:4px 8px;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;color:#1d4ed8;word-break:break-all}.empty-row{text-align:center;color:var(--soft)}.admin-layout{display:grid;grid-template-columns:minmax(290px,370px) minmax(0,1fr);gap:18px;align-items:start}.create-panel{position:sticky;top:24px}.setup-list,.user-list{display:grid;gap:14px}.setup-item{padding:12px 14px;color:var(--muted);background:var(--panel2);border:1px solid var(--line);border-radius:12px}.user-stat-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.user-row-card{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:14px;align-items:center}.user-badges{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.role-badge,.self-badge{display:inline-flex;align-items:center;min-height:29px;padding:6px 9px;border-radius:999px;font-size:.73rem;font-weight:850;letter-spacing:.04em;text-transform:uppercase}.role-admin{color:#92400e;background:#fef3c7;border:1px solid #fcd34d}.role-viewer{color:#1d4ed8;background:#dbeafe;border:1px solid #bfdbfe}.self-badge{color:#6d28d9;background:#ede9fe;border:1px solid #ddd6fe}.permission-grid{display:grid;gap:9px}.permission-card{display:grid;grid-template-columns:auto minmax(0,1fr);gap:11px;align-items:flex-start;padding:12px;background:var(--panel2);border:1px solid var(--line);border-radius:12px;cursor:pointer}.permission-card strong,.permission-card small{display:block}.permission-card small{margin-top:3px;color:var(--soft);line-height:1.45}.danger-zone{margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}

@media(max-width:1160px){.stat-grid,.detail-metric-strip,.user-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-layout,.detail-two-column{grid-template-columns:1fr}.create-panel{position:static}}
@media(max-width:920px){.app-shell{grid-template-columns:1fr}.sidebar{position:static;height:auto}.side-nav{grid-template-columns:repeat(4,minmax(0,1fr))}.sidebar-card{display:none}.main{padding:20px 14px}.page-hero,.section-head,.panel-header,.user-card-header,.user-card-footer{flex-direction:column;align-items:flex-start}.section-subtitle{text-align:left}.tab-nav{overflow-x:auto}.tab-button{white-space:nowrap}}
@media(max-width:640px){.login-page{padding:14px}.login-card{padding:24px}.stat-grid,.sensor-grid,.detail-metric-strip,.side-nav,.user-stat-grid,.user-row-card{grid-template-columns:1fr}.user-badges{justify-content:flex-start}.temp-display strong{font-size:2.25rem}th,td{white-space:nowrap}}


/* V10 live UI, tooltip and logout placement */
.sidebar { display:flex; flex-direction:column; }
.logo { order:1; }
.sidebar-card { order:2; margin-top:0; margin-bottom:22px; }
.side-nav { order:3; display:flex; flex-direction:column; flex:1; min-height:0; }
.side-nav a.logout-link,
.side-nav a[href="logout.php"] { margin-top:auto; color:#fecaca; }
.side-nav a.logout-link span,
.side-nav a[href="logout.php"] span { background:rgba(220,38,38,.16); color:#fecaca; }
.side-nav a.logout-link:hover,
.side-nav a[href="logout.php"]:hover { background:rgba(220,38,38,.14); color:#fff; }
.live-pill { display:inline-flex; align-items:center; gap:8px; min-height:32px; padding:7px 11px; border-radius:999px; background:#ecfdf5; color:#047857; font-size:.78rem; font-weight:850; border:1px solid #a7f3d0; }
.live-pill::before { content:""; width:8px; height:8px; border-radius:50%; background:currentColor; box-shadow:0 0 0 4px rgba(5,150,105,.12); }
.live-pill.offline { color:#b45309; background:#fff7ed; border-color:#fed7aa; }
.updated-flash { animation: updatedFlash .8s ease; }
@keyframes updatedFlash { 0%{ background:#eff6ff; } 100%{ background:transparent; } }
.chart-wrap { position:relative; }
.chart-tooltip { position:absolute; pointer-events:none; min-width:210px; max-width:280px; padding:11px 12px; border-radius:12px; background:rgba(17,24,39,.96); color:#fff; box-shadow:0 18px 40px rgba(17,24,39,.22); font-size:.88rem; line-height:1.45; transform:translate(-50%,-115%); z-index:20; display:none; }
.chart-tooltip strong { display:block; font-size:1rem; margin-bottom:5px; }
.chart-tooltip span { display:block; color:#cbd5e1; }
.chart-tooltip .tooltip-muted { color:#94a3b8; }
.chart-tooltip.visible { display:block; }
.chart-tooltip::after { content:""; position:absolute; left:50%; bottom:-7px; transform:translateX(-50%); border-left:7px solid transparent; border-right:7px solid transparent; border-top:7px solid rgba(17,24,39,.96); }
.chart-wrap canvas { cursor:crosshair; }
.sensor-card.live-updated { animation: cardPulse .75s ease; }
@keyframes cardPulse { 0%{ box-shadow:0 0 0 4px rgba(31,94,255,.12); } 100%{ box-shadow:0 8px 20px rgba(24,39,75,.05); } }
@media(max-width:920px){ .side-nav a.logout-link, .side-nav a[href="logout.php"]{ margin-top:0; } .sidebar-card{ display:none; } }

/* V15 additions: keep original design, only add controls */
.toolbar-controls{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap}.inline-control{display:flex;align-items:center;gap:8px;margin:0}.inline-control span{color:var(--soft);font-size:.72rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase}.inline-control select{width:auto;min-width:145px;min-height:34px;padding:7px 10px;border-radius:10px}.request-status{margin:-8px 0 16px;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--panel2);color:var(--muted)}.request-status.success{color:#065f46;background:#ecfdf5;border-color:#a7f3d0}.request-status.error{color:#991b1b;background:#fef2f2;border-color:#fecaca}.request-status.info{color:#1d4ed8;background:#eff6ff;border-color:#bfdbfe}